Find Synonyms
lethargy Synonyms
Another word for lethargy
Choosing another word for lethargy depends on context, so the 12 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
• noun (Context 1)
A state of sluggishness, physical fatigue, and lack of energy or enthusiasm.
Usage Example
"The oppressive summer humidity brought a wave of sluggishness over the entire office."
Strongest
sluggishness
listlessness
torpor
languor
lassitude
Strong
inertia
apathy
indolence
• noun (Context 2)
A pathological state of prolonged sleepiness, deep unresponsiveness, and muscular inactivity caused by illness, injury, or medication.
Usage Example
"Persistent fever and severe stupor are warning signs that require immediate medical evaluation."
Strongest
stupor
Strong
somnolence
torpidity
drowsiness
Opposites of lethargy
The opposite of lethargy shifts depending on context. Common opposites include:
vitality
vigor
energy
wakefulness
alertness
enthusiasm
responsiveness
liveliness
Cite this Entry
Wordmom. (2026). Synonyms for Lethargy. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/lethargy